1. The viscosity and thermal conductivity coefficients for dense gaseous and liquid argon, krypton, xenon, nitrogen and oxygen;Hanley;J. Phys. Chem. Ref. Data,1974
2. AGA gashandbok 1982, (in Swedish).
3. B. Jonsson, Heat Transfer Through Windows, Document D13:1985, Svensk Byggtjänst, Stockholm, Sweden, 1985.
4. J.P. Holman, Heat Transfer, 7th edn., McGraw-Hill, Singapore, 1989.
5. Heat transfer by natural convection across vertical and inclined air layers;Elsherbiny;ASME Journal of Heat Transfer,1982